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A corded speakerphone is a type of telephone where the handset is attached to the base with a cord, and the phone features the capability of speakerphone. This type of phone is common in offices, where one will need to be able to hang up the handset and talk on the phone using the speakerphone … Read more

The most important factor to consider when choosing the best robot is whether the robot performs the function you want it to perform. You might be considering a purchase of one or more mini robots or you might be trying to judge the best mini robot for a contest or article. Whatever your reasons for … Read more

A wireless surveillance system is convenient for many situations. As the phrase suggests, it does not need wires to do its job of recording what goes on in the environment in which it is placed. Instead, this type uses radio transmitters and receivers that get their power from batteries rather than wired electricity. This makes … Read more

The best way to choose citizen’s band (CB) walkie talkies is to consider what kind of capacity you need, how you will be using your walkie talkies, and what features you might like to have. CB radios are all largely the same in their output power, but there are a few variations that you might … Read more

A mobile PDA, or personal digital assistant, is a portable, hand-held communication device. Many PDAs have access to the Internet and can serve as portable phones. Generally, they are small and powered by rechargeable batteries that can last a day or more. They almost always serve a wide variety of purposes; some can even take … Read more

One of the first things that you should consider when choosing head band headphones is what you will be using them for. High-quality headphones will also usually have a broad frequency range, and therefore have good sound quality. You may also want to consider headphones with good sound isolation features. Also, some headphones are wireless, … Read more

Image processing compression involves reducing the amount of space an image occupies when written to a physical file or when being held in memory. The general concept behind most compression algorithms is that images have repeating patterns or similar parts that can be specially encoded and then symbolically referenced, avoiding the need to explicitly rewrite … Read more

There are two main types of travel adapters that can be used with electronic devices. The first type simply converts one type of plug to another, allowing a device from one country to plug into a foreign wall socket. These are simple pass-through units that provide an electrical connection between the proper terminals, but do … Read more

A digital dictation recorder is a convenient and compact electronic device used for recording spoken voices. The digital dictation recorder is then able to play back the recordings at a later time. This type of device is frequently used by legal professionals, medical professionals, and students, but they may be used by anyone who wants … Read more

Secure digital (SD) memory cards are flash memory cards which meet the standards of the Secure Digital Association, a group of manufacturers which sets and certifies SD cards. Typically, secure digital memory cards can store between one and four gigabytes of data, and are designed for use in portable devices like cameras. They are what … Read more

FRS radios are those radios that are used as part of the family radio service. They have become increasingly popular among children as novelty toys and families as a practical way to keep in touch over short distances. The effective range of most FRS radios is one mile (1.6 km), though some are marketed to … Read more

A computer camera can provide many hours of enjoyment. With one, you can let your friends and family members see you, up close and personal, no matter how far away they happen to be. You can also take digital photographs and create your own videos. You can make clips to insert in emails and even … Read more

A PowerSquid is a type of power strip that typically creates multiple outlets by using individual cables running out of a central hub. The name of the product comes from the strip’s general resemblance to a squid. Each cable runs off the hub like a tentacle. There are two basic categories of PowerSquid products, outlet … Read more

A bench power supply is a desktop or modular device that delivers electrical energy to one or more electrical loads. Typically occupying a technician’s bench, it may convert alternating (AC) or direct current (DC) loads from one form to another, with outputs supplying preset amounts of voltage and amperage. These devices differ in amounts of … Read more

A phone tracking system is a system which relies on triangulation of transmitter tower data to pinpoint the location of a cell phone. There are a number of ways in which this can be accomplished. Many countries require that cell phones be fitted with GPS transponders which can be used by phone tracking systems, and … Read more

A waterproof digital camera is a camera that can be used both underwater and in wet conditions. Waterproof digital cameras are used by professional photographers as well as those who enjoy photography as a hobby. Some people purchase waterproof models simply because they want the security of knowing that their cameras will survive even accidental … Read more

There are a number of ways to recycle cell phones, and in some cases, recycling can even net a small cash payment, making it well worth it. By recycling an old phone, someone can directly contribute to a decrease in electronic waste, and ensure that the components of the cell phone are responsibly disposed of … Read more

IR lamps, or infrared lamps, are any light sources that provide light in a spectrum or wavelengths longer than visible red. This technology has a wide range of uses, including chemical and paint reactions, thermal or heat imaging and medical uses. It is generally inexpensive to produce these lamps, and infrared exposures to humans are … Read more

The National Television System Committee (NTSC) standard for analog television signal broadcasting, adopted by the Federal Communications Committee (FCC) in 1941, remained in place until 2009. In June of that year, the Advanced Television Systems Committee (ATSC) standards for digital television (DTV) broadcasting replaced the NTSC’s analog standards for all major television broadcasters in the … Read more

There are many things to consider when you are trying to choose the best touch tone telephone. Among them are how often you will need to use the phone and the amount of moving about you will need to do during phone calls. If you will have to walk around a great deal, you may … Read more